In the United States between 1850 and 1880, the number of farmers continued to increase, but at a rate lower than that of the general population
Which of the following statements directly contradicts the information presented above?
A.The number of farmers in the general population increased slightly in the 30 years between 1850 and 1880.
B.The rate of growth of the United States labor force and the rate of growth of the general population rose simultaneously in the 30 years between 1850 and 1880.
C.The proportion of farmers in the United States labor force remained constant in the 30 years between 1850 and 1880.
D.The proportion of farmers in the United States labor force decreased from 64 percent in 1850 to 49 percent in 1880.
E.The proportion of farmers in the general population increased from 68 percent in 1850 to 72 percent in 1880.
In the past ten years, there have been several improvements in mountain-climbing equipment. These improvements have made the sport both safer and more enjoyable for experienced climbers. Despite these improvements, however, the rate of mountain-climbing injuries has doubled in past ten years.
Which of the following, if true, best reconciles the apparent discrepancy presented in the passage?
A.Many climbers, lulled into a false sense of security, use the new equipment to attempt climbing feats of which they are not capable.
B.Some mountain-climbing injuries are caused by unforeseeable weather conditions.
C.Mountain climbing, although a dangerous sport, does not normally result in injury to the experienced climber.
D.In the past ten years there have been improvements in mountain-climbing techniques as well as in mountain-climbing equipment.
E.Although the rate of mountain-climbing injuries has increased, the rate of mountain-climbing deaths has not changed.